if (aliasConfigFile.exists()) {
                final String source = FileUtil.readUTF8(aliasConfigFile);
                final AcknowledgedResponse response = indicesClient.prepareAliases().addAlias(indexName, aliasName, source).execute()
                        .actionGet(fessConfig.getIndexIndicesTimeout());
                if (response.isAcknowledged()) {

	local got
	got=$(mc cat "$2" | sha256sum)

	if [ "${expected}" != "${got}" ]; then
		echo "mismatch - expected ${expected}, got ${got}"
		exit 1
	fi
	echo "matches - ${expected}, got ${got}"
}

add_alias() {
	for i in $(seq 1 4); do
		echo "... attempting to add alias $i"
		until (mc alias set minio http://127.0.0.1:9000 minioadmin minioadmin); do
			echo "...waiting... for 5secs" && sleep 5
		done
	done